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Linear Equations in One Variable — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSLinear Equations in One Variable1 Mark
MCQ
The root of the equation $7(x - 1) = 21$ is:
  • A
    $1$
  • B
    $2$
  • C
    $3$
  • ✓
    $4$
✓

Answer

Correct option: D.
$4$
$\text{(x} -1 ) =21 \Rightarrow \text{x} - 1= \frac{21}{7}=3$
$ \Rightarrow \text{x = 4.}$

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